Fix QUIET_NAN_NEGATED definition in t-iris6

[Richard Sandiford]

I tripped over this as a parallel bootstrap failure on mips-sgi-irix6.5.
When the QUIET_NAN_NEGATED definitions were added to the MIPS makefiles,
there was a typo in the one for IRIX long doubles.

Bootstrapped & tested on mips-sgi-irix6.5.  Applied to mainline.

Since the same build failure could trigger on 3.4, and since that would
be a regression from 3.3, I'll apply this patch to 3.4 when the branch
reopens.

Richard


	* config/mips/t-iris6 (tp-bit.c): Fix target filename.

Index: config/mips/t-iris6
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/mips/t-iris6,v
retrieving revision 1.24
diff -u -p -F^\([(a-zA-Z0-9_]\|#define\) -r1.24 t-iris6
--- config/mips/t-iris6	20 Aug 2004 10:20:16 -0000	1.24
+++ config/mips/t-iris6	6 Nov 2004 22:42:10 -0000
@@ -14,7 +14,7 @@ tp-bit.c: $(srcdir)/config/fp-bit.c
 	echo '#ifdef __MIPSEL__' > tp-bit.c
 	echo '# define FLOAT_BIT_ORDER_MISMATCH' >> tp-bit.c
 	echo '#endif' >> tp-bit.c
-	echo '#define QUIET_NAN_NEGATED' >> dp-bit.c
+	echo '#define QUIET_NAN_NEGATED' >> tp-bit.c
 	echo '#if __LDBL_MANT_DIG__ == 106' >> tp-bit.c
 	echo '# define TFLOAT' >> tp-bit.c
 	cat $(srcdir)/config/fp-bit.c >> tp-bit.c